Decoupling the effects of defects on efficiency and stability through phosphonates in stable halide perovskite solar cells
Xie, Haibing (Institut Català de Nanociència i Nanotecnologia)
Wang, Zaiwei (École Polytechnique Fédérale de Lausanne. Institute of Chemical Sciences and Engineering)
Chen, Zehua (Eindhoven University of Technology. Department of Applied Physics.)
Pereyra, Carlos (Institut Català de Nanociència i Nanotecnologia)
Pols, Mike (Eindhoven University of Technology. Department of Applied Physics)
Gałkowski, Krzysztof (University of Cambridge. Cavendish Laboratory)
Anaya, Miguel (University of Cambridge. Cavendish Laboratory)
Fu, Shuai (Max-Planck Institute for polymer Research)
Jia, Xiaoyu (Max-Planck Institute for polymer Research)
Tang, PengYi (Institut Català de Nanociència i Nanotecnologia)
Kubicki, Dominik Józef (University of Cambridge. Cavendish Laboratory)
Agarwalla, Anand (École Polytechnique Fédérale de Lausanne. Institute of Chemical Sciences and Engineering)
Kim, Hui-Seon (École Polytechnique Fédérale de Lausanne. Institute of Chemical Sciences and Engineering)
Prochowicz, Daniel (École Polytechnique Fédérale de Lausanne. Institute of Chemical Sciences and Engineering)
Borrisé, Xavier (Institut de Microelectrònica de Barcelona)
Bonn, Mischa (Max-Planck Institute for polymer Research)
Bao, Chunxiong (Linköping University. Department of Physics, Chemistry and Biology)
Sun, Xiaoxiao (Empa-Swiss Federal Laboratories for Materials Science and Technology. Laboratory for Thin Films and Photovoltaics)
Zakeeruddin, Shaik Mohammed (École Polytechnique Fédérale de Lausanne. Institute of Chemical Sciences and Engineering)
Emsley, Lyndon (École Polytechnique Fédérale de Lausanne. Institute of Chemical Sciences and Engineering)
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia)
Gao, Feng (Linköping University. Department of Physics, Chemistry and Biology)
Fu, Fan (Empa-Swiss Federal Laboratories for Materials Science and Technology. Laboratory for Thin Films and Photovoltaics)
Wang, Hai I. (Max-Planck Institute for polymer Research)
Tielrooij, Klaas-Jan (Institut Català de Nanociència i Nanotecnologia)
Stranks, Samuel D. (University of Cambridge. Cavendish Laboratory)
Tao, Shuxia (Eindhoven University of Technology. Center for Computational Energy Research, Applied Physics)
Grätzel, Michael (École Polytechnique Fédérale de Lausanne. Institute of Chemical Sciences and Engineering)
Hagfeldt, Anders (École Polytechnique Fédérale de Lausanne. Institute of Chemical Sciences and Engineering)
Lira-Cantu, Monica (Institut Català de Nanociència i Nanotecnologia)

Data:	2021
Resum:	Understanding defects is of paramount importance for the development of stable halide perovskite solar cells (PSCs). However, isolating their distinctive effects on device efficiency and stability is currently a challenge. We report that adding the organic molecule 3-phosphonopropionic acid (H3pp) to the halide perovskite results in unchanged overall optoelectronic performance while having a tremendous effect on device stability. We obtained PSCs with ∼21% efficiency that retain ∼100% of the initial efficiency after 1,000 h at the maximum power point under simulated AM1. 5G illumination. The strong interaction between the perovskite and the H3pp molecule through two types of hydrogen bonds (HI and OH) leads to shallow point defect passivation that has a significant effect on device stability but not on the non-radiative recombination and device efficiency. We expect that our work will have important implications for the current understanding and advancement of operational PSCs.
Ajuts:	Ministerio de Economía y Competitividad SEV-2017-0706 European Commission 764047 European Commission 785219 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR 327 Ministerio de Economía y Competitividad ENE2017-85087-C3 European Commission 841386 European Commission 804349 Ministerio de Ciencia e Innovación RYC-2017-22330 Ministerio de Ciencia e Innovación PID2019-104272RB-C54 Ministerio de Economía y Competitividad CTQ2016-81911-REDT Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-329
Drets:	Tots els drets reservats.
Llengua:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Matèria:	Perovskite solar cells ; Performance ; Stability ; Additive engineering ; Defect passivation ; Shallow point defects ; Deep point defects ; Phosphonates
Publicat a:	Joule, Vol. 5, Issue 5 (May 2021) , p. 1246-1266, ISSN 2542-4351

DOI: 10.1016/j.joule.2021.04.003

Postprint 45 p, 3.4 MB

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